Update to 1.11
    
    - New upstream release 1.11
      - Compatibility with Module::Signature 0.75+
    - Classify buildreqs by usage
    - Don't use macros for commands
    - Avoid clobbering ~/.gnupg for local builds
    - Make %files list more explicit
    - Drop %defattr, redundant since rpm 4.4
    - Import upstream's GPG key in %prep so we don't need to fetch it from a
      keyserver when running the signature test